ugain namyn dwy

== Welsh == === Etymology === From ugain (“twenty”) +‎ namyn (“minus”) +‎ dwy (“two”). === Pronunciation === (North Wales) IPA(key): /ˌɪɡai̯n ˌnamɨ̞n ˈdʊɨ̯/ (South Wales, standard, colloquial) IPA(key): /ˌiːɡai̯n ˌnamɪn ˈdʊi̯/, /ˌɪɡai̯n ˌnamɪn ˈdui̯/ (South Wales, colloquial) IPA(key): /ˌiːɡɛn ˌnamɪn ˈdʊi̯/, /ˌɪɡɛn ˌnamɪn ˈdui̯/ === Numeral === ugain namyn dwy f (cardinal number, vigesimal) feminine of ugain namyn dau (“eighteen”) Synonyms: deunaw, un deg wyth, tair ar bymtheg === Mutation ===